Ultimate + Comfort

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D1 has studied human anatomy, ergononmics, fluid mechanics, aquatic massage, acupressure, and reflexology so extensively we actually invented a new science; we call it “hydronomics.” Using state-of-the-art modeling software, D1 engineers design our hot tubs in virtual space, which ensures the ultimate in comfort.

BioForm Seating

The culmination of hydronomics can be experienced in our BioForm Seating.

  • Non-float seating designs
  • Optimized body positioning
  • Full body immersion
  • Ideal jet and control placement
  • Correct size and type of jets
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NeckFlex Jet Pillow

The first and only height-adjustable neck jet pillow.

  • Patented design provides the ultimate in comfort
  • 5 height positions allows for a wide range of users
  • Curved pillow cradles your neck
  • Up to 4 adjustable jets water volume and nozzle angle


This “Spa-within-a-spa” provides the ultimate in full-body hydrotherapy from head-to-toe.

  • No-float design
  • Sculpted leg contours for superior fit
  • Tactile Therapy for wrists and hands
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Tactile Therapy

Raised bumps provide acupressure massage.

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